Vehicle-jack.



rrmo Stratus Farmer @rrrcn.

AUGUST Z W'IOKER, OF RUSK, TEXAS.

VEHICLlE JACK.

SPECIFICATION forming part of Letters Patent No, 709,730, dated September 23, 1902. Application filed January 31,1902. Serial No. 92,049. (No model.)

To all 7 071,072 it nut/7, concern:

Be itknown thatl, AUGUST ZWICKER, a citizen of the United States, residing at Rusk, in the county of Cherokee and State of Texas, have invented new and useful Improvements in Vehicle-Jacks, of which the following is a specification.

This invention relates to a jack for buggies or other vehicles; and the object of the same is'to provide a simple and effective device of this class adapted to be reduced to compact form and embodying means for positively elevating a buggy or other vehicle for the purpose of greasing axles and other operations and includes in its organization a lifting-arm or support havinga flexible winding element attached thereto and so constructed that a maximum lifting force can be concentrated in the arm or support by the application of a minimum amount of power.

The invention also contemplates the details of construction and arrangement of the several parts, which will be more fully hereinaf ter described and claimed.

The drawing illustrates a perspective view of a jack embodying the features of the invention.

The numeral 1 designates an upright or bar, which may be constructed of either wood or metal, and when formed of wood the entire structure is materially lightened. The upper end of the upright or bar is shaped or reduced to produce a grip or handle 2, and the lower end is covered partially by a metal strap 3, which is doubled and projected downwardly at one edge to form a gripping-toe 4:, which is adapted to be embedded in the ground to prevent slipping of the upright or bar when in use. A yoke 5 is secured to the upper portion of the upright or bar and is provided with outwardly-extending arms 6, having a shaft or spindle 7 rotatablymounted in the free extremities thereof and carryinga suitable roller located between the said arms. The shaft or spindle 7is extended beyond one of the arms 6 and formed with an eye 8, to which is pivotally secured the inner bifurcated end. 9 of a crank-handle 10. Above and below the yoke5 on one side of the upright or barl are angular stops 11, having outstanding members 12 with beveled edges 13 and end recesses 14. The recesses 14 are adapted to be engaged by the crank-handle to hold the latter against movement and to prevent the roller carried by the shaft 7 from unwinding when it is desired to maintain a certain adjusted position of the parts, which will be hereinafter explained. During the rotation of the crank-handle 10 to impart a winding movement to the shaft 7 and the drum carried thereby said crank-handle will readily pass the stops by riding over the inclined edges 13, and to disengage the crank-handle from the recesses 14 of the stops it is drawn outwardly through the pivotal connection thereof with the one end of the shaft 7.

The drum on the shaft 7is en a ed b and has secured thereto a strap or band 15, having a lower looped extremity 16, connected to a link 17, pivoted to the upper portion of a slide 18. The slide 18 comprises upper and lower yokes 19 and 20, each having a roller 21 at one end, which bears against the adjacent edge of the upright or bar 1. The yokes 19 and 20 are united at their opposite ends by a connecting-bar 22, having a lower forked extremity or terminal 23, which embraces an antifrictional roller 24, hearing against the adjacent edge of the upright or bar 1 at a point opposite the plane of engagement of the roller 21 in the lower yoke 20. Pivotally secured to the upper portion of the connecting-bar 22 is a bifurcated head 25, having a lifting arm or support 26, the head .and lifting arm or support being held down in normal operative position by a pin 27, removably passing through the lower part of the head 25 and the adjacent portion of the connectingbar 22. For convenience in application the outer end of the lifting arm or support 26 is provided with a ferrule 28, having a seat 29 therein to take under an axle or the like and prevent overriding of the latter on the said arm or support.

lVhen it is desired to reduce the jack to compact form, the pin 27 is withdrawn from the head 25 and the adjacent portion of the connecting-bar 22, and the arm or support is then raised and held in is desired to arrange the application to a vehicle.

In the operation of the device the arm or support is placed under the axle or other part jack, as shown, for

of a buggy or vehicle to be raised, and the such position until it IOO strap or band 15 is wound on the drum carried by the shaft 7 through the medium of the crank-handle 10, and after the portion of the vehicle engaged has been elevated the required distance the crank-handle 10 is locked or held against movement by either one of the stops 11. When itis desired to lower the arm or support 26, the crank-handle 10 is released from the stop with which it is in engagement and the strap or band is permitted to unwind.

The improved jack will be found exceptionally useful and is of a strong and durable nature, and though the preferred form thereof has been shown it will be understood that changes in the form, proportions, dimensions,

and minor details may be resorted to without in the least departing from the principle of the invention.

Having thus fully described the invention, what is claimed as new is 1. A jack of the class set forth, com prising an upright, a slide mounted on the upright and havinga support pivotally connected thereto, a winding mechanism above the slide, and a flexible connection between the winding mechanism and slide.

2. A jack of the class set forth comprising an upright, aslide mounted on the upright and having a support pivotally attached thereto,

a winding mechanism having a pivoted winding device, upper and lower stops to engage the winding device, and a flexible connection between the winding mechanism and the slide.

3. A jack of the class set forth comprising an upright,a slide mounted thereon and pro vided with a pivoted support, a winding mech-' anism having a winding device pivot-ally attached thereto, upper and lower stops with inclined edges and concave seats for engagement by said winding device, and a flexible connection between the winding mechanism and the slide.

4.. In a jack of the class set forth, the combination of an upright, a slide mounted thereon and having antifrictional rollers engaging opposite edges thereof, a support pivotally carried by the said slide, Winding mechanism above the slide, and a flexible connection between the slide and Winding mechanism.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST ZWIOKER.

Witnesses:

J UE WILKISON, M. P. ARDREY. 

